#!/usr/bin/python3

class MyClass:
    i = 123456

    def __init__(self):
        self.data = []

    def f(self):
        return "hello word!"

class Complex:
    def __init__(self,replart,imagpart):
        self.r = replart
        self.i = imagpart

x = MyClass()

print(x.i)
print(x.f())

c = Complex(3.0,-4.5)

print(c.r,c.i)